在AECOPD的治疗中，我们的目标病人是（）。
A.门诊病人
B.住院病人
C.两者都是
参考答案：B
When I got the news that the ship would sink, I was _________ frightened ________ my legs couldn't move forward.
A．so, that
B．very, that
C．too, that
D．too, to
什么是增值税差额征税？
